Computational Science
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Matt Knepley
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36 Answers

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46
What are good ways to document scientific software?
Dec 10 '11 at 15:06
36
Is it worthwhile to write unit tests for scientific research codes?
Dec 3 '11 at 19:06
34
What guidelines should I follow when choosing a sparse linear system solver?
Nov 30 '11 at 15:17
32
Is algorithmic analysis by flop-counting obsolete?
Nov 30 '11 at 21:36
19
Future of OpenCL?
Dec 12 '11 at 17:53
17
What software is good to use for parallel debugging?
Dec 14 '11 at 15:10
14
Performance differences between ATLAS and MKL?
Dec 4 '11 at 0:21
13
What guidelines should I use when searching for good preconditioning methods for a specific problem?
Apr 3 '12 at 22:39
13
Why is my parallel solver slower than my sequential solver?
Dec 2 '11 at 19:17
12
Recommendations and experiences on which license to choose for software?
Dec 13 '11 at 19:59
10
numerical integration with possible division by 'zero'
Dec 13 '11 at 17:43
10
Desktop software with HPC resources for back end number crunching
Nov 29 '11 at 21:47
9
Libraries for solving sparse linear systems
Nov 30 '11 at 17:47
8
Does the matrix condition number affect accuracy of iterative linear solvers?
Apr 24 '15 at 23:09
8
What programming paradigms should I be investing in if I want my code to run on petascale machines in the future?
Dec 1 '11 at 19:07
8
How to deal with too much data?
Dec 7 '11 at 23:23
7
Estimation of condition numbers for very large matrices
Dec 12 '11 at 17:45
7
Are there operator splitting approaches for multiphysics PDEs that achieve high order convergence?
Nov 30 '11 at 14:30
6
Linear regression via SVD not producing best fit with escalating polynomial degree
Dec 4 '11 at 1:12
5
Calculation of the sparsity structure for finite element matrices
Apr 18 '13 at 21:06
5
Petsc's xxxSetxxx methods: Own Pointer or Copy Values?
May 23 '12 at 11:56
5
How do I read a binary file into PETSc as a matrix?
Feb 18 '12 at 21:15
5
COMSOL on Ubuntu (10.04 LTS and 11.04)
Dec 7 '11 at 11:17
5
Parallel I/O options, in particular parallel HDF5
Dec 3 '11 at 17:47
5
What are the best practices for algorithms and implementation of multi-physics simulations?
Dec 2 '11 at 13:49
4
Is it usual to have no convergence checking in Multigrid?
Sep 16 '15 at 11:21
4
How to assemble and solve a matrix system in parallel from values generated in different processors?
Mar 3 '12 at 18:26
4
(How) do you take into account memory fragmentation?
Dec 10 '11 at 5:25
4
What is a scalable preconditioner for high-frequency Helmholtz?
Nov 30 '11 at 14:25
4
Which methods can ensure that physical quantities remain positive throughout a PDE simulation?
Nov 30 '11 at 13:46
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